CVE-2026-48045 Zeroconf: Unbounded TC-deferred queue allows LAN-local memory exhaustion via spoofed-source flood

Zeroconf is a pure Python implementation of multicast DNS service discovery. Prior to 0.149.12, AsyncListener.handlequeryordefer retained every truncated TC-bit incoming query, each up to MAXMSGABSOLUTE = 8966 bytes, in self.deferredaddr and armed a per-address timer in self.timersaddr without...

CVE-2026-48045

The CVE-2026-48045 issue affects python-zeroconf (Zeroconf Pure Python) where AsyncListener.handle_query_or_defer retains every truncated TC-bit mDNS query per source in self._deferred[addr] and arms per-address timers in self._timers[addr]. This unbounded queue growth on LAN-local hosts (UDP/535...

python-zeroconf: Unbounded TC-deferred queue allows LAN-local memory exhaustion via spoofed-source flood

ImpactAsyncListener.handlequeryordefer retained every truncated TC-bit incoming query in self.deferredaddr and armed a per-addr timer in self.timersaddr that flushed the reassembled query within 500 ms RFC 6762 §18.5. Neither the per-addr list nor the number of distinct addr keys was capped, and...

PYSEC-2026-3435 python-zeroconf: Unbounded TC-deferred queue allows LAN-local memory exhaustion via spoofed-source flood

Impact AsyncListener.handlequeryordefer retained every truncated TC-bit incoming query in self.deferredaddr and armed a per-addr timer in self.timersaddr that flushed the reassembled query within 500 ms RFC 6762 §18.5. Neither the per-addr list nor the number of distinct addr keys was capped, and...

EUVD-2026-38947

In the Linux kernel, the following vulnerability has been resolved: netsched: fix skb memory leak in deferred qdisc drops When the network stack cleans up the deferred list via qdiscrunend, it operates on the root qdisc. If the root qdisc do not implement the TCQFDEQUEUEDROPS flag the packets que...

SUSE CVE-2026-45855

In the Linux kernel, the following vulnerability has been resolved: ata: libata-scsi: avoid Non-NCQ command starvation When a non-NCQ command is issued while NCQ commands are being executed, atascsiqcissue indicates to the SCSI layer that the command issuing should be deferred by returning...

CVE-2026-45855

In the Linux kernel, the following vulnerability has been resolved: ata: libata-scsi: avoid Non-NCQ command starvation When a non-NCQ command is issued while NCQ commands are being executed, atascsiqcissue indicates to the SCSI layer that the command issuing should be deferred by returning...

UBUNTU-CVE-2026-45855

In the Linux kernel, the following vulnerability has been resolved: ata: libata-scsi: avoid Non-NCQ command starvation When a non-NCQ command is issued while NCQ commands are being executed, atascsiqcissue indicates to the SCSI layer that the command issuing should be deferred by returning...

Linux Distros Unpatched Vulnerability : CVE-2026-45855

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ata: libata-scsi: avoid Non-NCQ command starvation When a non-NCQ command is issued while NCQ commands are being executed, atascsiqcissue indicates to the SCSI...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: At the ata module, the issue with libata: the pending work is cancelled after clearing deferredqc. Syzbot reported a WARNON in atascsideferredqcwork, caused by ap-ops-qcdefer returning a non-zero value before issuing the deferred...

Linux Distros Unpatched Vulnerability : CVE-2026-23355

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: ata: libata: cancel pending work after clearing deferredqc Syzbot reported a WARNON in...

CVE-2026-23355

In the Linux kernel, the following vulnerability has been resolved: ata: libata: cancel pending work after clearing deferredqc Syzbot reported a WARNON in atascsideferredqcwork, caused by ap-ops-qcdefer returning non-zero before issuing the deferred qc. atascsischeduledeferredqc is called during...

CVE-2026-23355 ata: libata: cancel pending work after clearing deferred_qc

In the Linux kernel, the following vulnerability has been resolved: ata: libata: cancel pending work after clearing deferredqc Syzbot reported a WARNON in atascsideferredqcwork, caused by ap-ops-qcdefer returning non-zero before issuing the deferred qc. atascsischeduledeferredqc is called during...

PT-2026-27720

In the Linux kernel, the following vulnerability has been resolved: ata: libata: cancel pending work after clearing deferred qc Syzbot reported a WARN ON in ata scsi deferred qc work, caused by ap-ops-qc defer returning non-zero before issuing the deferred qc. ata scsi schedule deferred qc is...

UBUNTU-CVE-2024-53079

In the Linux kernel, the following vulnerability has been resolved: mm/thp: fix deferred split unqueue naming and locking Recent changes are putting more pressure on THP deferred split queues: under load revealing long-standing races, causing listdel corruptions, "Bad page state"s and worse I kee...

CVE-2024-26837 net: bridge: switchdev: Skip MDB replays of deferred events on offload

In the Linux kernel, the following vulnerability has been resolved: net: bridge: switchdev: Skip MDB replays of deferred events on offload Before this change, generation of the list of MDB events to replay would race against the creation of new group memberships, either from the IGMP/MLD snooping...